Java Enterprise Edition, or Java EE (previously called J2EE), is a powerful but notoriously complex platform for developing server-side applications. Since its early days, complexity has long been ...

The evolution of Web-related technologies has changed the way applications in an organization communicate with customer and partner applications. Like every popular technology, Web services came like ...

Persistence is one of the greatest challenges for building applications. There are many options for building persistence layers. Data Access Objects (DAO) is a popular design pattern for building the ...

The packaging mechanisms defined in Chapter 8 of the J2EE 1.3 specification provide a framework for pulling together all the pieces of a J2EE application. However, application server vendors are free ...